Swing-supporting bearing



Sept. 14 1926-.

E. CROWLEY 1599656 SWING SUPPORTING BEAMNG Filed Nov. 12, '1i-92s 'Ma f g ffl,

INVE/V T01?.

fowl/v CROWLEX Patented Sept. lei, i926.

EDWIN CROWLEY, GF `IVINNEA?GLS,` MINNESOTA.

Application file. November lt is an object oit this invention, therefore,

toA provide a simple and eliicient swing supporting device in which the 'flexible members extending from. the swingv have substantially no sliding or scraping movement on the support.

lt is another object of the invention to provide such a support comprising a rigidly supported member having a curved upper surface en'ibraced by spaced annular ineinbers ot much larger diameter adapted to have rolling Contact with said device, which latter members carry means `'lor supporting the ile'xible swing supporting 'memner.

lt is more specilically an object oil the in vention to provide a device comprising a rigidly supported cylindrical member embraced by spaced rings oit much larger diameter, said rings carrying rigid depending lugs in which are received smaller' links or rings adapted to carry the flexible swing members together with means on said cylindrical support tor preventing lateralinove ment of said lirst mentioned rings.

These and other objects and advantages of the invention will be more 'fully set fort-h in the following description made in connection with the accompanying drawings in which like reference characters refer to the same parts throughout the diierent views, and in which,

Fig. l is a view in t'ront elevation ci the device;

Fig. i2 is a vertical section taken on the line 2-2 ot Fig. l, as indicated by the arrows; and

Fig. is a partial view similar to l, but partly in vertical section.

Referring to the drawings, the device comprises a member l extending longitudinally between any suitable supporting means and rigidly held therein. The member l has a convex curved upper surface la and said member conveniently may take a cylindrical member such as an iron pipe. Rings 2 surround the members l at spaced apparatus. Swings l the form ot.

12, 19523` Serial No. $74,124.#

points and are maintained in comparatively tired spaced relation thereon by the members While the members 3. may take various terms, in the embodiment of the invention illustrated, they are formed as simple til-shaped members bentfrom a single rod, one end of which is somewhat longer than the other and is threaded. The sidesv ot member 3 project through holes l in the member 'l and the threaded side extends through another hole l and receiveslavnut l thereon which is tightened to clamp the inber securely in position, the unthreaded oil the members 3 contacting. they inner `side of the member or pipe l. The ringsv 2 ibly illus `lated, radially and secured together by headed and nuttedbolts ject' Jd to 'torni a lug vand is transversely ap riured. rl'lie link ti, illustrated as a? cir# cular i, f, en "rds throughtheaperture in the lug and has its aXiseXtending are tormedot a flat bar anchas the anis oli the ring 2 and the axis of niembei' l. rlhe lugs 2 on the rings 2 are connected by a bar 7 apertured at its ends to receive the bolts 5 and secured thereby. Flexible members 8 oit the swing which, in the embodiment ot the invention illustrated are shown as chains, are looped through the ring G. As shown, one end ot said chains carries a hook which is merely hooked through one or" the chain links.

ln operation, plane extending at right angles to the anis of member l. The flexible members 8 and links 6 will have substantially no relative motion but will move withthe rings 2. The latter will move relatively to the member `l and the inner concave surface oi' said rings will move over the convex suritace lEL oitl the member l with a rolling contact, thus causing very little wear between said members, The rings 2 are kept in correct position by the members 3 and are Jfurther caused to move substantially in unison by a cross bar 7. This cross bar 7 serves an eliicient purpose and tends to prevent gyrating move-` ment of the members 8, thus act-ing to keep the swing moving in a plane at right angles to the member 7. This is important in playground swings where the same are supporter close to each other in a row, as a gyrating swing Otten collides with the adjacent swing causing injury to children.

the ends' oi the bar" arelient @ne end of the bar 2a is'p'r'oy parallel to and substantially vertically ali'ned with the swing 'will move in a` lll) F rom the above description it is seen that applicant has provided an extremely simple and eliicient swing support. The parts can be made of material of a very simple nature and which is very easily procured. The device is quite rugged, operates with aI minimum of noise and wear and is easily installed. The same has been amply demonstrated in actual practice and found to be very eflicient and successful.

It will, of course, be understood, that various changes may be made iii the form, details, arrangement and proportions of the parts without departing from the scope of applicants invention, which7 generally stated, consists in a device capable of carrying out the objects above stated, such as shown and described and set forth in the appended claims.

l/Vhat is claimed is:

l. A swing support comprising a cylindrical supporting bar, spaced rings made from flat sheet material of appreciably larger diameter than said bai', loosely surrounding the same and contacting the top thereof, means for connecting the lower ends of said rings to the swing arms of a swing, and a rigid strut bar connecting together the lower portions of said rings whereby when the swing isswung gyroscoping movement thereof will be prevented.

2. A swing support comprising` a cylindriv surrounding the same and contacting the top surface of said bar, means connected to said rings and movable therewith adapted to be connected to the flexible bars of said swing whereby in the motion of said swing said rings roll on said bar and the line of contact of each ring and bar moves back and forth across the top generatrix line of said bar, and U shaped rods extending into and V secured in said bar enclosing said rings to prevent movement thereof longitudinally of said bar.

il. A swing support comprising a cylindrical supporting bar7 spaced rings of appreciably larger diameter than said bar loosely surrounding the same and contacting the top thereof, means for connecting the lower ends of said rings to the side members of a swing, and means on said bar at both sides of said rings for preventing movement of said rings longitudinally of said bar.

In testimony whereof I affix my signature.

EDWIN CROVLEY. 

